Removing the by-products acetic acid and NH4+ from the l-tryptophan broth by vacuum thin film evaporation during l-tryptophan production

Background: During l-tryptophan production by Escherichia coli, the by-products, acetic acid and NH4+, accumulate in the fermentation broth, resulting in inhibited cell growth and activity and decreased l-tryptophan production. To improve the l-tryptophan yield and glucose conversion rate, acetic ac...

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Bibliographic Details
Main Authors: Qingyang Xu, Fang Bai, Ning Chen, Gang Bai
Format: Article
Language:English
Published: Elsevier 2018-05-01
Series:Electronic Journal of Biotechnology
Online Access:http://www.sciencedirect.com/science/article/pii/S0717345818300137